Update babel monorepo

Author: renovate-bot

package.json

@@ -18,7 +18,7 @@
   ],
   "dependencies": {
     "@amory/style": "2020.2.1-0",
-    "@babel/plugin-proposal-export-namespace-from": "7.8.3",
+    "@babel/plugin-proposal-export-namespace-from": "7.12.1",
     "@babel/plugin-syntax-dynamic-import": "7.8.3",
     "@koa/router": "8.0.8",
     "@next/bundle-analyzer": "9.3.4",
@@ -36,7 +36,7 @@
     "react-dom": "16.13.1"
   },
   "devDependencies": {
-    "@babel/core": "7.9.0",
+    "@babel/core": "7.12.3",
     "@hot-loader/react-dom": "16.13.0",
     "@storybook/addon-actions": "5.3.18",
     "@storybook/addon-links": "5.3.18",